Nevermind on my question as to who the five uniques are, I ended the game, pressed continue my old game and it put me right before the king fight, so I searched for the other. They are Knight, Mage, Crossbower, Axe Horseman and Cleric. All are just upgraded versions of the starter types.
I try to pull as many revenge waves as possible without loosing my hero, retreat all back to castle and heal everyone, then make them follow the pheonix back to castle, lol
.... First thing i noticed in this game was how all the character pictures look like World of Warcraft races, Ex. Rembrant looks like a human with red hair, Galp is a dwarf, Abe is a draenie, trevquez is a night elf
The best level for racking up huge kills is 56, Use the Minigun to annihilate the incoming bunnies. They are all small so it doesnt require any upgrades to do massive damage. When your minigun overheats dont sit it out, just switch to another gun and fire alil bit, switch back after a couple shots and there will be no heat. This tactic works with all guns and any map.